Monsters turns its premise into a simple collecting routine: click a monster, build up a collection, and see which creatures appear over time. The game frames the pursuit as a journey toward catching its “epic monsters,” while its stated design keeps the action deliberately spare rather than layering on a broader set of controls.
The timing of the rewards gives that routine its defining structure. After 30 minutes, players are set to receive random Common or Uncommon monsters; a three-hour wait brings random Special, Rare, or Epic finds, and an 18-hour interval is associated with random Mythic or Legendary monsters. Clicking and waiting are the only actions described, so the appeal centers on gradual collection and uncertainty about the next result.
Its casual, free-to-play classification also fits the straightforward format: progress is described through clicking and timed random rewards, with Steam Achievements listed among its features.